Banning is all well and good...
But the current governments ability to do this so far leaves so much to be desired as to wondering why they bothered...
What they really need, is a central service for identifying denizens of the internet in a secure, centrally controlled way that's actually in the interests of the citizens and not some 3rd party service (using flawed systems prone to being faked and breached).
That there is no centralised system that can be trusted by the government says alot.
If only there was something automatically assigned to every legal citizen, some sort of Identification document able to do zero trust authentication, quick revocation (in case it's lost/stolen) but rewards citizens for actually using it (this encouraging carrying, frequent usage). If only... (And yes, other countries have managed this one, Malaysia for example with their MyKard)